pjs/uriloader/exthandler/android/nsMIMEInfoAndroid.cpp

445 строки
11 KiB
C++

/* -*- Mode: c++; c-basic-offset: 2; tab-width: 20; indent-tabs-mode: nil; -*-
* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is Mozilla Android code.
*
* The Initial Developer of the Original Code is Mozilla Foundation.
* Portions created by the Initial Developer are Copyright (C) 2010
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
* Michael Wu <mwu@mozilla.com>
*
* Alternatively, the contents of this file may be used under the terms of
* either the GNU General Public License Version 2 or later (the "GPL"), or
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
#include "nsMIMEInfoAndroid.h"
#include "AndroidBridge.h"
#include "nsAndroidHandlerApp.h"
#include "nsArrayUtils.h"
#include "nsISupportsUtils.h"
#include "nsStringEnumerator.h"
#include "nsNetUtil.h"
NS_IMPL_ISUPPORTS2(nsMIMEInfoAndroid, nsIMIMEInfo, nsIHandlerInfo)
NS_IMETHODIMP
nsMIMEInfoAndroid::LaunchDefaultWithFile(nsIFile* aFile)
{
LaunchWithFile(aFile);
return NS_OK;
}
NS_IMETHODIMP
nsMIMEInfoAndroid::LoadUriInternal(nsIURI * aURI)
{
nsCString uriSpec;
aURI->GetSpec(uriSpec);
nsCString uriScheme;
aURI->GetScheme(uriScheme);
if (mozilla::AndroidBridge::Bridge())
return mozilla::AndroidBridge::Bridge()->
OpenUriExternal(uriSpec, mType.Equals(uriScheme) ? EmptyCString() : mType) ? NS_OK : NS_ERROR_FAILURE;
return NS_ERROR_FAILURE;
}
bool
nsMIMEInfoAndroid::GetMimeInfoForMimeType(const nsACString& aMimeType,
nsMIMEInfoAndroid** aMimeInfo)
{
nsRefPtr<nsMIMEInfoAndroid> info = new nsMIMEInfoAndroid(aMimeType);
mozilla::AndroidBridge* bridge = mozilla::AndroidBridge::Bridge();
// we don't have access to the bridge, so just assume we can handle
// the mime type for now and let the system deal with it
if (!bridge){
info.forget(aMimeInfo);
return false;
}
nsIHandlerApp* systemDefault = nsnull;
bridge->GetHandlersForMimeType(nsCAutoString(aMimeType).get(),
info->mHandlerApps, &systemDefault);
if (systemDefault)
info->mPrefApp = systemDefault;
nsCAutoString fileExt;
bridge->GetExtensionFromMimeType(aMimeType, fileExt);
info->SetPrimaryExtension(fileExt);
PRUint32 len;
info->mHandlerApps->GetLength(&len);
if (len == 1) {
info.forget(aMimeInfo);
return false;
}
info.forget(aMimeInfo);
return true;
}
bool
nsMIMEInfoAndroid::GetMimeInfoForFileExt(const nsACString& aFileExt,
nsMIMEInfoAndroid **aMimeInfo)
{
nsCString mimeType;
if (mozilla::AndroidBridge::Bridge())
mozilla::AndroidBridge::Bridge()->
GetMimeTypeFromExtensions(aFileExt, mimeType);
// "*/*" means that the bridge didn't know.
if (mimeType.Equals(nsDependentCString("*/*"), nsCaseInsensitiveCStringComparator()))
return false;
bool found = GetMimeInfoForMimeType(mimeType, aMimeInfo);
(*aMimeInfo)->SetPrimaryExtension(aFileExt);
return found;
}
/**
* Returns MIME info for the aURL, which may contain the whole URL or only a protocol
*/
nsresult
nsMIMEInfoAndroid::GetMimeInfoForURL(const nsACString &aURL,
bool *found,
nsIHandlerInfo **info)
{
nsMIMEInfoAndroid *mimeinfo = new nsMIMEInfoAndroid(aURL);
NS_ADDREF(*info = mimeinfo);
*found = true;
mozilla::AndroidBridge* bridge = mozilla::AndroidBridge::Bridge();
if (!bridge) {
// we don't have access to the bridge, so just assume we can handle
// the protocol for now and let the system deal with it
return NS_OK;
}
nsIHandlerApp* systemDefault = nsnull;
bridge->GetHandlersForURL(nsCAutoString(aURL).get(),
mimeinfo->mHandlerApps, &systemDefault);
if (systemDefault)
mimeinfo->mPrefApp = systemDefault;
nsCAutoString fileExt;
nsCAutoString mimeType;
mimeinfo->GetType(mimeType);
bridge->GetExtensionFromMimeType(mimeType, fileExt);
mimeinfo->SetPrimaryExtension(fileExt);
PRUint32 len;
mimeinfo->mHandlerApps->GetLength(&len);
if (len == 1) {
// Code that calls this requires an object regardless if the OS has
// something for us, so we return the empty object.
*found = false;
return NS_OK;
}
return NS_OK;
}
NS_IMETHODIMP
nsMIMEInfoAndroid::GetType(nsACString& aType)
{
aType.Assign(mType);
return NS_OK;
}
NS_IMETHODIMP
nsMIMEInfoAndroid::GetDescription(nsAString& aDesc)
{
aDesc.Assign(mDescription);
return NS_OK;
}
NS_IMETHODIMP
nsMIMEInfoAndroid::SetDescription(const nsAString& aDesc)
{
mDescription.Assign(aDesc);
return NS_OK;
}
NS_IMETHODIMP
nsMIMEInfoAndroid::GetPreferredApplicationHandler(nsIHandlerApp** aApp)
{
*aApp = mPrefApp;
NS_IF_ADDREF(*aApp);
return NS_OK;
}
NS_IMETHODIMP
nsMIMEInfoAndroid::SetPreferredApplicationHandler(nsIHandlerApp* aApp)
{
mPrefApp = aApp;
return NS_OK;
}
NS_IMETHODIMP
nsMIMEInfoAndroid::GetPossibleApplicationHandlers(nsIMutableArray **aHandlerApps)
{
if (!mHandlerApps)
mHandlerApps = do_CreateInstance(NS_ARRAY_CONTRACTID);
if (!mHandlerApps)
return NS_ERROR_OUT_OF_MEMORY;
*aHandlerApps = mHandlerApps;
NS_IF_ADDREF(*aHandlerApps);
return NS_OK;
}
NS_IMETHODIMP
nsMIMEInfoAndroid::GetHasDefaultHandler(bool* aHasDefault)
{
PRUint32 len;
*aHasDefault = false;
if (!mHandlerApps)
return NS_OK;
if (NS_FAILED(mHandlerApps->GetLength(&len)))
return NS_OK;
if (len == 0)
return NS_OK;
*aHasDefault = true;
return NS_OK;
}
NS_IMETHODIMP
nsMIMEInfoAndroid::GetDefaultDescription(nsAString& aDesc)
{
aDesc.Assign(EmptyString());
return NS_OK;
}
NS_IMETHODIMP
nsMIMEInfoAndroid::LaunchWithURI(nsIURI* aURI, nsIInterfaceRequestor* req)
{
return mPrefApp->LaunchWithURI(aURI, req);
}
NS_IMETHODIMP
nsMIMEInfoAndroid::GetPreferredAction(nsHandlerInfoAction* aPrefAction)
{
*aPrefAction = mPrefAction;
return NS_OK;
}
NS_IMETHODIMP
nsMIMEInfoAndroid::SetPreferredAction(nsHandlerInfoAction aPrefAction)
{
mPrefAction = aPrefAction;
return NS_OK;
}
NS_IMETHODIMP
nsMIMEInfoAndroid::GetAlwaysAskBeforeHandling(bool* aAlwaysAsk)
{
*aAlwaysAsk = mAlwaysAsk;
return NS_OK;
}
NS_IMETHODIMP
nsMIMEInfoAndroid::SetAlwaysAskBeforeHandling(bool aAlwaysAsk)
{
mAlwaysAsk = aAlwaysAsk;
return NS_OK;
}
NS_IMETHODIMP
nsMIMEInfoAndroid::GetFileExtensions(nsIUTF8StringEnumerator** aResult)
{
return NS_NewUTF8StringEnumerator(aResult, &mExtensions, this);
}
NS_IMETHODIMP
nsMIMEInfoAndroid::SetFileExtensions(const nsACString & aExtensions)
{
mExtensions.Clear();
nsCString extList(aExtensions);
PRInt32 breakLocation = -1;
while ( (breakLocation = extList.FindChar(',')) != -1)
{
mExtensions.AppendElement(Substring(extList.get(), extList.get() + breakLocation));
extList.Cut(0, breakLocation + 1);
}
if (!extList.IsEmpty())
mExtensions.AppendElement(extList);
return NS_OK;
}
NS_IMETHODIMP
nsMIMEInfoAndroid::ExtensionExists(const nsACString & aExtension, bool *aRetVal)
{
NS_ASSERTION(!aExtension.IsEmpty(), "no extension");
bool found = false;
PRUint32 extCount = mExtensions.Length();
if (extCount < 1) return NS_OK;
for (PRUint8 i=0; i < extCount; i++) {
const nsCString& ext = mExtensions[i];
if (ext.Equals(aExtension, nsCaseInsensitiveCStringComparator())) {
found = true;
break;
}
}
*aRetVal = found;
return NS_OK;
}
NS_IMETHODIMP
nsMIMEInfoAndroid::AppendExtension(const nsACString & aExtension)
{
mExtensions.AppendElement(aExtension);
return NS_OK;
}
NS_IMETHODIMP
nsMIMEInfoAndroid::GetPrimaryExtension(nsACString & aPrimaryExtension)
{
if (!mExtensions.Length())
return NS_ERROR_NOT_INITIALIZED;
aPrimaryExtension = mExtensions[0];
return NS_OK;
}
NS_IMETHODIMP
nsMIMEInfoAndroid::SetPrimaryExtension(const nsACString & aExtension)
{
NS_ASSERTION(!aExtension.IsEmpty(), "no extension");
PRUint32 extCount = mExtensions.Length();
PRUint8 i;
bool found = false;
for (i=0; i < extCount; i++) {
const nsCString& ext = mExtensions[i];
if (ext.Equals(aExtension, nsCaseInsensitiveCStringComparator())) {
found = true;
break;
}
}
if (found) {
mExtensions.RemoveElementAt(i);
}
mExtensions.InsertElementAt(0, aExtension);
return NS_OK;
}
NS_IMETHODIMP
nsMIMEInfoAndroid::GetMIMEType(nsACString & aMIMEType)
{
aMIMEType.Assign(mType);
return NS_OK;
}
NS_IMETHODIMP
nsMIMEInfoAndroid::Equals(nsIMIMEInfo *aMIMEInfo, bool *aRetVal)
{
if (!aMIMEInfo) return NS_ERROR_NULL_POINTER;
nsCAutoString type;
nsresult rv = aMIMEInfo->GetMIMEType(type);
if (NS_FAILED(rv)) return rv;
*aRetVal = mType.Equals(type);
return NS_OK;
}
NS_IMETHODIMP
nsMIMEInfoAndroid::GetPossibleLocalHandlers(nsIArray * *aPossibleLocalHandlers)
{
return NS_ERROR_NOT_IMPLEMENTED;
}
NS_IMETHODIMP
nsMIMEInfoAndroid::LaunchWithFile(nsIFile *aFile)
{
nsCOMPtr<nsIURI> uri;
NS_NewFileURI(getter_AddRefs(uri), aFile);
LoadUriInternal(uri);
return NS_OK;
}
nsMIMEInfoAndroid::nsMIMEInfoAndroid(const nsACString& aMIMEType) :
mType(aMIMEType), mAlwaysAsk(true),
mPrefAction(nsIMIMEInfo::useHelperApp)
{
mPrefApp = new nsMIMEInfoAndroid::SystemChooser(this);
nsresult rv;
mHandlerApps = do_CreateInstance(NS_ARRAY_CONTRACTID, &rv);
mHandlerApps->AppendElement(mPrefApp, false);
}
NS_IMPL_ISUPPORTS1(nsMIMEInfoAndroid::SystemChooser, nsIHandlerApp)
nsresult nsMIMEInfoAndroid::SystemChooser::GetName(nsAString & aName) {
aName.Assign(NS_LITERAL_STRING("Android chooser"));
return NS_OK;
}
nsresult
nsMIMEInfoAndroid::SystemChooser::SetName(const nsAString&) {
return NS_OK;
}
nsresult
nsMIMEInfoAndroid::SystemChooser::GetDetailedDescription(nsAString & aDesc) {
aDesc.Assign(NS_LITERAL_STRING("Android's default handler application chooser"));
return NS_OK;
}
nsresult
nsMIMEInfoAndroid::SystemChooser::SetDetailedDescription(const nsAString&) {
return NS_OK;
}
nsresult
nsMIMEInfoAndroid::SystemChooser::Equals(nsIHandlerApp *aHandlerApp, bool *aRetVal) {
nsCOMPtr<nsMIMEInfoAndroid::SystemChooser> info = do_QueryInterface(aHandlerApp);
if (info)
return mOuter->Equals(info->mOuter, aRetVal);
*aRetVal = false;
return NS_OK;
}
nsresult
nsMIMEInfoAndroid::SystemChooser::LaunchWithURI(nsIURI* aURI, nsIInterfaceRequestor*)
{
return mOuter->LoadUriInternal(aURI);
}